Thru

//θɹu// prep, slang

prep, slang ·Moderate ·College level

Definitions

Preposition
  1. 1
    Nonstandard spelling of through. Canada, US, alt-of, informal, nonstandard

    "We wanted an overall treatment system that gave us optimum reliability and required a minimum of labor to operate - from primary clarifier thru sludge handling, …"

  2. 2
    Abbreviation of through. Canada, US, abbreviation, alt-of
  3. 3
    Eye dialect spelling of through. UK, alt-of, dialectal, pronunciation-spelling, rare, regional

Synonyms

All synonyms
thro'

Example

More examples

"We wanted an overall treatment system that gave us optimum reliability and required a minimum of labor to operate - from primary clarifier thru sludge handling, …"

Etymology

Modern use originated in American English as a phonetic and simplified spelling of through around 1839. The spelling had previously been one of several used in Middle English.

Related phrases

click-thrudrive-thrusee-thruski-thruthru-hikeclick thrudrive thrusee thruthru hike

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.